WARNING!
So, perhaps this could make a new category "Cortisone" and entered under "leg cramps" as a warning to others?
All my life I have had leg cramps like the 9th month of pregnancy. I was desperate and that's when I found Earthclinic some years back.
The remedy of taking ACV turned the tide for me. I take extra magnesium when my body tells me it needs it, but 2 Tbsp ACV and about 1/4 tsp baking soda, fill the cup with about 3 oz of cold water and drink while fizzing generally stops the leg cramps in under a minute.
Last year I had a cortisone shot for what we thought was bursitis. It only helped for about 3 weeks (found out via MRI later I had 2 torn tendons causing the pain). However, the cortisone shot was followed by several DAYS of intense, repeated leg/foot cramps, often both legs at once, that simply would not respond to my remedies (Emergenc-E, powdered magnesium in water, and ACV as noted above).
I slept in a recliner so I could hop up easier. My husband had to help me when I would have an attack (one day it was every 30 minutes!). He said he had never seen me this bad (married 35 years)!
Sometimes I drank the ACV straight (ugh!) because I was so desperate--I looked like I was having a lower body seizure even falling to the floor in agony upending the kitchen chair I grabbed in the process.
I NEVER just fall down as I am a chiropractic patient and I can screw my body up if not careful. Through researching I found out that people who are prone to leg cramps sometimes find that this is a side effect.
My doctor had never heard of that as a side effect, but anecdotal information found via search engine was enough for me to support the validity of my experience! Worst week of my life and now my records are noted to never give me anything in the cortisone family again! I hope this anecdotal information is helpful to prevent someone else from suffering like I did!